【作者】 何小群； 廖海洋； 兰红； 刘晓竹；

【Author】 He Xiao-qun Liao Hai-yang Lan Hong Liu Xiao-zhu (Key Laboratory of Optoelectronic Technology and Systems of MOE,Chongqing University,Chongqing 400030,China)

【机构】 重庆大学光电技术及系统教育部重点实验室；

【摘要】 提出了一种基于图像处理多点区域测量焦度的新方法。主要介绍了用该方法实现焦度全自动测量的工作原理及仪器结构;采用哈特曼栅格获取图像,经图像预处理去噪,对相关栅格图像坐标分析计算,实现了眼镜片的球镜度、散光度、棱镜度等的全自动测量。实验证明,该方法测量精度高,速度快,抗干扰能力强。更多还原

【Abstract】 A new method of lens power multipoint area measurement which based on image processing is proposed,mostly,the structure and working principle of this automatic focimeterare introduced.Hartmann grid is adopted to get image and image pretreatment is introduced to eliminate noise.It realizes complete automatic measurement of the spherical,astigmatic and prismatic power from analysing and calculating the coordinate of correlation grid image.After experiment,it is proved that this method has high accuracy,high speed and good ability of anti-jamming.更多还原